柔性热电材料的研究进展及应用

Research Progress and Application of Flexible Thermoelectric Materials

热电材料是能够实现热能和电能直接相互转化的一类新型能源材料,在温差发电和半导体制冷两方面有重要应用。与传统热电材料相比,柔性热电材料具有形状可弯曲、重量轻和环境友好等优点,在可穿戴设备及其他柔性电子领域具有较好的应用前景。当前,如何进一步提高柔性热电材料的性能,特别是如何协同优化其柔韧性能与热电性能是研究的关键。本文结合近年的研究热点,综述了聚合物基柔性热电材料、碳基柔性热电材料和无机半导体类柔性热电材料的研究进展,详细介绍了这三类柔性热电材料的特点、性能优化以及制备方法,总结了柔性热电材料在电子、医疗和工业等领域的应用,并结合现存的一些问题和不足对柔性热电材料今后的研究方向进行了展望。

Thermoelectric materials,as one new kind of energy materials,can realize the direct conversion of thermal and electrical energy,which have important applications in power generation and refrigeration.Compared with traditional thermoelectric materials,flexible thermoelectric materials demonstrate excellent application prospects in wearable devices and flexible electronics fields,due to the advantages of being bendable,a lightweight and environmentally friendly.At present,how to further improve the performance of flexible thermoelectric materials is the focus,especially the collaborative optimization of flexibility andthermoelectric properties.In this paper,we have reviewed the research progress of polymer-based flexible thermoelectric materials,carbon-based flexible thermoelectric materials and inorganic semiconductor flexible thermoelectric materials,introduced their characteristics,performance optimization and preparation methods,and summarized the applications of flexible thermoelectric materials in the fields of electronics,medicine and industry.Also,based on the shortcomings of flexible thermoelectric materials,the future research directions are prospected.